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Set comes on with e.h.t for 4 sec,then goes off B=142v

Philips mod 32pw9544/75 standard T.v.

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Re: set comes on with e.h.t for 4 sec,then goes off...


The problem you described is a case of the shutdown circuit being activated. This is either due to an overcurrent or overvoltage condition within the circuirty of the TV set. This could be an open or shorted component in the High Voltage section of the TV, or an open or shorted component in the low voltage power supply section of the TV. In any case If I were troubleshooting this TV I would check the Horizontal out put transistor to see if it had shorted or opened at one of its junctions. I would also check to see if any of the voltage regulators had shorted or opened. I would also suggest that you check to see if you see any signs of burnt components (note the section).

If you do not have a background in Electronics, I would suggest that you take the TV to a qualified TV shop for repairs. This is because the work that needs to be done is not sinmple, and serious harm can result if you are not careful.

I wish you well on the repair of your TV.

Thank you,

Posted on Nov 26, 2007

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